Heavy Metal Sunday thinks "Smilodon" would be a good band name too.

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Mastodon is a Grammy Award-nominated heavy metal band from Atlanta, Georgia. It is one of the most notable bands in the New Wave of American Heavy Metal. They were formed in 1999 by Brann Dailor, Bill Kelliher, Troy Sanders, Brent Hinds and original vocalist Eric Saner. They have released four full-length albums and have toured worldwide, achieving increased album sales and an ever expanding fan base with each new release.

Today, mosh your brains out to Blood and Thunder off their 2004 release, Leviathan. Warning! This video contains clowns. Scary clowns.